I am trying to replace a Moen single-handle Kitchen Faucet. On the underside of the sink, there is a c-shaped cap/collar that is holding the old faucet in place. The sprayer and water lines run through it. There is not a piece like it with the new faucet I purchased and I'm having trouble finding anything online about how to remove it. There are no screws or clips that I can see. It's pretty rusty, so I'm handling it with some leather gloves and I can get it to turn slightly, but not enough to unscrew.
I have tried unscrewing it with my hands and a basin wrench (it's too big for the basin wrench to get around), hitting it with a hammer (just makes the rust fall off) and prying it. No luck.
Hello, and thanks for your question !
You may want to try putting some penetrating oil such as WD40 and let it set for awhile to loosen up the nut.
They do tend to stick quite bad after years of sitting and rusting.
Sometimes I have even had to use a bigger pair of channel lock pliers, (big adjustable pliers) to break the collar of in sections to remove the faucet.
When you install the new faucet, I would apply some plumbers grease to the new threads to keep this from happening again in the future.
I hope this helps with your situation, Im still here to assist you if needed.
20+ years in most phases of construction